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Triss [41]
3 years ago
10

Please help me out as soon as you can. Really need help.

Physics
1 answer:
olga nikolaevna [1]3 years ago
4 0
The answer would be 6 because 2.0x3= 6

(newton’s 2nd law)

mark me brainliest
You might be interested in
What term is applied to the situation in which energy has been transferred from faster particles to slower ones and as a result
Alborosie

Answer:

Conduction

Explanation:

Conduction refers to the transfer of energy through the movement of particles that are in contact with each other. It could be heat conduction, electrical conduction or sound conduction. Heat conduction (or thermal conduction) is the transfer of energy from a warmer substance to a colder one through direct contact, for example, someone touching the handle of a hot metal skillet.

Electrical conduction is the transfer of electrically charged particles through a medium, for example, electricity traveling through the power lines in a house.

Sound conduction (or acoustic conduction) is the transfer of sound waves through a medium, for example, vibrations from loud music passing through a wall.

7 0
3 years ago
Read 2 more answers
An escalator is 18.3 m long. If a person stands on the escalator, it takes 47.8 s to ride from the bottom to the top. If a perso
Novay_Z [31]

Answer:

20.243 s

Explanation:

Because the escalator and person moving in the same direction, relative velocity can be calculated by summing the velocity of the escalator and velocity of the person.  

The speed of escalator can be calculated as,

v_{escalator}=\frac{x}{t}=\frac{18.3}{47.8}=0.383\ m/s

Relative velocity

v_{relative}=v_{escalator}+v_{person}\\\\v_{relative}=0.383+0.521=0.904\ m/s\\

Therefore total time required to take the person to get to the top

t=\frac{x}{v_{relative}}= \frac{18.3}{0.904}=20.243\ s

8 0
3 years ago
A 5.0 kg wooden block Is 100 meters from the ground. What is the gravitational potential energy for the block?
iren [92.7K]

Answer:

<h2>4900 J</h2>

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 5 × 9.8 × 100

We have the final answer as

<h3>4900 J</h3>

Hope this helps you

7 0
3 years ago
Most of an atom is empty space.<br> a. True<br> b. False
Iteru [2.4K]
 <span>Yes, the vast majority of an atom is indeed empty space. Most of it's mass is centered in the nucleus. Flying around the nucleus are the electrons, but they're very very far away (on an atomic level anyway). Most of the atom is the space between the nucleus and the electrons.</span>
6 0
3 years ago
Read 2 more answers
the car starts from rest at s=0 and increases its speed at at=4m/s^2. Determine the time when the magnitude of acceleration beco
dem82 [27]

Answer:

<em>Time =  5 seconds</em>

<em>Distance = 50 meters</em>

Explanation:

<u>Constantly Accelerated Motion</u>

When the velocity of a moving object changes at a constant rate, called acceleration, the velocity changes in same amounts in the same times. The question has a mistake when asking when the acceleration is 20 m/s. If the acceleration is constant, the only variable that can change to that value is the velocity. The equation to calculate the speed is

v_f=v_o+a.t

And the distance s is

\displaystyle s=v_o.t+\frac{gt^2}{2}

Given the object starts from rest, vo=0 and vf=20 m/s at a=4\ m/s^2. We compute t

\displaystyle t=\frac{v_f-v_o}{a}=\frac{20-0}{4}

\boxed{t=5\ sec}

Now we compute s

\displaystyle s=0+\frac{4\times 5^2}{2}

\boxed{s=50\ m}

5 0
3 years ago
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